Lens and Lens Module

Abstract

The present disclosure provides a lens, including a body portion which serves as an imaging region, a peripheral portion which extends outward from the body portion and a groove. The peripheral portion includes a top surface, a bottom surface arranged opposite to the top surface and a side wall which connects the top surface with the bottom surface, the groove is arranged at the side wall, the groove is formed in a manner that an external surface of the side wall sinks toward an optical axis of the lens, and the groove is filled with a black material. The present disclosure further provides a lens module. Compared with relevant art, the lens and lens modules of the present disclosure have good optical performance and high assembling efficiency.

1 . a lens, comprising:
 a body portion which serves as an imaging region;   a peripheral portion which extends outward from the body portion, the peripheral portion comprises a top surface, a bottom surface arranged opposite to the top surface and a side wall which connects the top surface with the bottom surface; and   a groove provided at the side wall, the groove is formed in a manner that an external surface of the side wall sinks toward an optical axis of the lens, and the groove is filled with a black material.   
     
     
         2 . The lens as described in  claim 1 , wherein the black material is a black paint. 
     
     
         3 . The lens as described in  claim 1 , wherein the black material is a black coating material. 
     
     
         4 . The lens as described in  claim 3 , wherein the groove is of a ring-shaped structure. 
     
     
         5 . The lens as described in  claim 4 , wherein a cross-section of the groove along a direction parallel to the optical axis is a rectangular or trapezoid. 
     
     
         6 . The lens according to  claim 5 , wherein a surface of the body portion is of a structure with a curved surface. 
     
     
         7 . A lens module, comprising a lens barrel and at least one lens according to  claim 1  accommodated in the lens barrel. 
     
     
         8 . The lens according to  claim 1 , wherein the side wall is annular. 
     
     
         9 . The lens according to  claim 1 , wherein the black material fills the entire groove so that the side wall of the lens is a complete curved surface without the groove. 
     
     
         10 . The lens module according to  claim 7 , wherein at least a portion of the black material abuts the lens barrel.